Which is gayer: Teen Wolf or Supernatural?
(I haven't seen any of Teen Wolf yet and I know as much about it as Gingerhaze, so if I get anything wrong - please help me out by correcting me!)

The website AfterElton.com is holding a tournament-style poll to determine the most popular slash pairing, and the championship round comes down to Sterek (Teen Wolf) vs. Destiel (Supernatural). It's a very close contest, and supporters have been tweeting official working-on-the-show people to get them to promote the poll on Twitter. This is a good short summary. Jeff Davis, producer and writer for Teen Wolf, replied to some tweets about it in August, but things really started to heat up with Misha Collins, who plays one half of the Destiel pairing on Supernatural, found out about the poll:

This homonormative poll makes me sick! http://www.afterelton.com/2012/09/ultimate-slash-madness-tourney-championship-round … -- No one could seriously think that those Teen Wolf jerks are gayer than us.

Then Stephen Lunsford, who plays "Matt" on Teen Wolf, replied:

@mishacollins I love you bro...but you will lose. LOSE I TELL YOU. Mwaha. MWAHAHAH. mwahaha. ha.

And then posts a link to the poll. Other various actors from both shows start tweeting links to the poll, though as of now, Misha is the only person actually in the pairings to respond. Even the official Twitters for both shows pimp the poll and encourage people to vote for their respective slash pairings.

Thing is, there is much less fighting between the two sets of shippers than one might expect; many people ship both and have trouble choosing who they are going to vote for. But people really care about who wins; why? Because if Sterek wins, it will become canon! (Naturally!) But while they're passionate, most of the shippers aren't hateful; the solution to this conflict is, of course, porn:

“You didn’t think you were going to win that easily, did you?” Destiel growled, nipping the younger wolf’s ear, revelling in the shudder it caused.
Sterek raised a trembling hand towards the chiselled half angel’s jaw. He stared at him, unflinching, before taking the older man’s lips between his teeth. He smirked at Destiel’s sharp intake of breath. “I never said it was going to be easy.”
” You can’t win this, Sterek. You’re too young.” Destiel replied hoarsely, hands clenching on either side of Sterek’s hips, steadying the wolf on his lap.
“I’m only 5 seasons younger than you, Destiel. I can handle it.” Sterek retorted breathlessly, before rocking himself shamelessly on top of the sexy hunter.

So, no, it's not from slash-fans fighting amongst themselves, but from, who else, crazy Supernatural fans:

(link) No, it's not until Sunday, but since Misha tweeted about it,Destiel is in the lead by about 2 percent. Stupid Misha, just had to whore himself out over a poll that has nothing to do with SPN only because he feels this kind of poll is the only way he will stay relevant. He is an idiot and I feel sorry for himself because he is going to be an actor that is only remembered for slash and fanfiction and porn. That isn't good for his acting future career. I really think he should start thinking twice about what he tweets but I don't think he ever will because he probably knows that he won't ever have something legitimate after SPN. He is just creepy, I mean I forever will remember himm as a pedo because of his role in that one film, where he admitted that after filming that movie he started looking at kids differently then he should. Does he not think about what he says?

(link) Is this a shock! Misha Collins was always going to pimp himself out. Unfortunately he has no care if it ruins Dean Winchester in the process. Because yes, I believe Castiel has female and male in him so he is definately bi and Misha is also imo.

Misha likes any attention. We've had Jared and especially Jensen lately getting attention and its been all J2, now he wants some attention even though its negative.

The thing is for Sterek, they are the show and this poll only is a continuation of what the story is about and will make the show better. Destiel winning will make the show worse and the online part of fandom nasty and vindictive. This isn't the show and winning this they will only want it actually in the show.

What has happened to Sterek, I thought they had the bigger fandom. I am calling cheaters! Destiel always cheat and there is no way they got that far ahead. I mean I know most of them have no life but still, the lost to Glee.

And someone creates a tumblr called Spn Fans Against Destiel - sorry, SPN FANS AGAINST DESTIEL in all-caps - which, I'm gonna warn you, is really fond of homophobic slurs.

People are upset, of course, but the unpleasantness that the Supernatural fandom can produce remains unsurpassed. In that respect, Supernatural has definitely got the Teen Wolf fandom beat.

Edit: Jensen Ackles is not okay with Destiel and therefore Misha's a dick for talking about it maybe? Jensen Ackles doesn't have a twitter so he won't be commenting on the poll. They're referring to an incident at this year's Comic-Con where a fan outright asked Misha and Jensen what they thought of Destiel, and Jensen replied that he didn't know what it was. Observe what is either passive-aggressive hostility or cheerful acceptance, depending on who you ask! Is Jensen stroking Misha's cheek a sign of, like, something? I can't tell anymore. It's turtles all the way down. Gay turtles.